Mars Satellites

Satellite

Distance(km)

Orbital Period (days)

Radius (km)

Mass (kg)

Density (kg/m3)

Phobos

9380

0.3189

14 x 11 x 9

1.1 x 1016

2200

Deimos

23,460

1.262

8 x 6 x 6

1.8 x 1015

1700

When a satellite's radius or diameter are given as a combination of numbers, it indicates that the object is not spherical, and these numbers represent its major dimensions (height, width and breadth).